EP1414325A1 - Entrainement electromoteur pour meuble servant a deplacer des parties d'un meuble les unes par rapport aux autres - Google Patents

Entrainement electromoteur pour meuble servant a deplacer des parties d'un meuble les unes par rapport aux autres

Info

Publication number
EP1414325A1
EP1414325A1 EP02776519A EP02776519A EP1414325A1 EP 1414325 A1 EP1414325 A1 EP 1414325A1 EP 02776519 A EP02776519 A EP 02776519A EP 02776519 A EP02776519 A EP 02776519A EP 1414325 A1 EP1414325 A1 EP 1414325A1
Authority
EP
European Patent Office
Prior art keywords
electric motor
furniture
furniture drive
gear
drive according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02776519A
Other languages
German (de)
English (en)
Inventor
Eckhart Dewert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cimosys AG
Original Assignee
Cimosys AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cimosys AG filed Critical Cimosys AG
Publication of EP1414325A1 publication Critical patent/EP1414325A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03211—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head-, foot- or like rests for beds, sofas or the like
    • A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination by electric motors

Definitions

  • Electromotive furniture drive for adjusting parts of a piece of furniture relative to one another
  • the invention relates to an electromotive furniture drive for adjusting parts of a piece of furniture re1ati to one another.
  • Furniture drives of this type are generally known, for example from EP 0 583 660 B1 and DE 38 47 078 C2.
  • the known furniture drives which are used, for example, to adjust parts of a slatted frame, have at least one electric motor which is in drive connection with a gear arrangement, the output-side gear element of which is operatively connected to a part of the furniture to be adjusted.
  • a disadvantage of the known furniture drives is that in the event of a failure of the electric motor, for example in the event of a power failure or a defect in the electric motor, manual adjustment of the furniture is generally not possible. This is particularly disadvantageous for a slatted frame and uncomfortable for the user if the failure occurs in an adjustment position in which the slatted frame is in a sitting position and cannot be returned to a sleeping position. To reset the slatted frame to the sleeping position, the user must then call on service personnel, the slatted frame not being usable as a place to sleep until the fault has been rectified by the service personnel.
  • gear elements of the gear arrangement so that they can be disengaged, so that in the disengaged position of the gear elements the electric motor is decoupled from an output-side gear element of the gear arrangement and a part of a piece of furniture adjusted by means of the furniture drive can thus be moved back manually to an initial position without this return movement to the starting position being blocked by the electric motor.
  • the disadvantage here is that gear assemblies with disengageable gear elements are complex and therefore expensive to manufacture.
  • the invention has for its object to provide a furniture drive for adjusting parts of a piece of furniture relative to each other, in which in the event of a drive failure, parts of the furniture can be reset by hand and which is simple in construction and thus inexpensive to manufacture.
  • the basic idea of the teaching according to the invention is to assign decoupling means for decoupling the electric motor from an output-side gear element of the gear arrangement to the electric motor.
  • decoupling means for decoupling the electric motor from an output-side gear element of the gear arrangement to the electric motor.
  • complex and thus expensive to manufacture gear assemblies with disengageable gear elements are not required, so that the furniture drive according to the invention is simple and therefore inexpensive to manufacture.
  • After decoupling the electric motor from the output-side gear element of the gear arrangement it is possible to reset a part of a piece of furniture adjusted by means of the furniture drive in a simple manner by hand without the reset by the electrical motor is blocked. This makes it easy to reset an adjusted part of the piece of furniture in the event of a failure of the electric motor, for example in the event of a power failure or a defect.
  • the furniture drive according to the invention is suitable for adjusting parts of any furniture, for example for adjusting parts of slatted frames or other support devices for mattresses or the like or parts of armchairs.
  • the furniture drive is designed as a double drive and has a first electric motor and a second electric motor, each of which is assigned a gear arrangement, and that common decoupling means are assigned to the electric motors, in such a way that the electric motors jointly from the respective output-side gear element of the associated gear arrangement can be decoupled.
  • separate decoupling means for the electric motors of a double drive are not required, so that the double drive is simple in construction and thus inexpensive to manufacture.
  • decoupling means have a mount for the electric motor, which is movably mounted on a base body of the furniture drive, by means of which the electric motor is between a working position in which the electric motor is in drive connection with the output-side gear element Gear arrangement stands, and a decoupling position is movable, in which the electric motor from the output-side gear element of the gear drive arrangement is decoupled.
  • the movable holder enables the electric motor to be decoupled from the output-side gear element in a structurally simple and therefore inexpensive manner.
  • this embodiment is particularly robust in construction.
  • the movement of the holder can be any suitable movement, for example a linear movement.
  • the output shaft of the electric motor can have a non-circular, in particular polygonal cross-section, wherein an input-side gear element of the gear arrangement downstream of the output shaft has a recess which is complementary to the cross-section of the output shaft and into which the output shaft of the electric motor engages in a positive manner in the working position.
  • a holder which can be displaced in the axial direction of the output shaft is provided, so that the output shaft of the electric motor can be disengaged from the recess of the gear element by displacement in the axial direction of the output shaft, and thus the electric motor is decoupled from the gear arrangement and thus also from the output-side gear element of the gear arrangement.
  • An extremely advantageous development of the embodiment with the movable holder provides that the holder is pivotally mounted on the basic body of the furniture drive.
  • This embodiment is simple and inexpensive to manufacture and robust in construction.
  • the electric motor moves from the working position into the decoupling position in a particularly simple manner by pivoting the holder.
  • the pivot axis around which the bracket can be pivoted can be arranged according to the gear arrangement selected in each case relative to the output shaft of the electric motor in any suitable manner, for example parallel or perpendicular to the output shaft to the latter.
  • the furniture drive is designed as a double drive, it is expedient that the first electric motor and the second electric motor are arranged on a common holder. In this way, only a common bracket is required to decouple the electric motors, so that the structure is simplified and thus designed more cost-effectively.
  • each of the electric motors can be assigned a separate mount movably mounted on the base body of the furniture drive, as is provided by another development. In this way, the electric motors can be decoupled separately from one another from the output-side gear element of the respectively assigned gear arrangement.
  • Another advantageous development of the embodiment with the movably mounted holder provides spring means for pretensioning the holder in the direction of the working position of the electric motor. In this embodiment, the electric motor is held in the working position by the spring means. The electric motor is uncoupled by moving the holder against the spring force of the spring means into the decoupling position.
  • the spring means have at least one leaf spring arranged between the holder and the base body of the furniture drive. In principle, it is sufficient if the electric motor is held in the working position by spring means or in another suitable manner. If it should be necessary to lock the electric motor in the working position, this is a good idea
  • the locking means can have latching means so that the holder engages in the working position and can be moved into the decoupling position after disengagement.
  • the gear arrangement expediently has a gearwheel gear.
  • gearboxes that are simple and inexpensive to produce, high reduction ratios can be achieved, and the power flow can be deflected in any way from the output shaft of the electric motor to the part of the piece of furniture to be adjusted by suitable choice of the gearbox.
  • the input-side part of the gear arrangement mounted on the holder is expediently permanently in drive connection with the electric motor.
  • the input-side part of the gear arrangement has a first spur gear on the output side, which is connected to the drive at least in the working position of the electric motor, the first spur gear in the working position being in engagement with a second spur gear assigned to the output-side part of the gear arrangement and itself is in the decoupling position of the electric motor disengaged from the second spur gear.
  • the decoupling of the electric motor is carried out by disengaging the first spur gear from the second spur gear together with the electric motor.
  • a further development of the aforementioned embodiment provides that the part of the gear arrangement on the input side has a worm which can be driven by the electric motor and which is in engagement with a worm wheel which is in drive connection with the first spur gear, in particular is non-rotatably connected to the latter.
  • the gear arrangement on the input side is simple and therefore inexpensive.
  • the worm can be connected in a rotationally fixed manner to the output shaft of the electric motor. It is expedient that
  • the worm is integrally formed on the output shaft of the electric motor, so that the structure is further simplified and is therefore less expensive.
  • the decoupling means can be actuated by an electric motor.
  • the decoupling means are usually only required in the event of a failure of the electric motor, a particularly simple and therefore inexpensive development of the teaching according to the invention provides actuating means for manual actuation of the Decoupling agent. Electromotive actuation means are therefore not necessary.
  • the actuating means can have a handle, a drawstring or the like, by means of which, for example in the embodiment with the movable holder, the holder can be moved into the decoupling position of the electric motor.
  • An expedient development of the embodiment embodied as a double drive, in which an input-side part of the gear arrangement is mounted on the holder, provides that the holder has a common bearing axis for at least one gear element of the input-side part of the gear arrangement assigned to the first electric motor and has at least one gear element of the input-side part of the gear arrangement assigned to the second electric motor.
  • the structure is further simplified and thus made more cost-effective.
  • a seating and / or reclining furniture provided with a furniture drive according to the invention is specified in claim 20.
  • FIG. 1 shows a plan view of an exemplary embodiment of a furniture drive according to the invention designed as a double drive with the housing open
  • FIG. 2 shows a part of the furniture drive in the area in a schematic perspective illustration the gear arrangements, the electric motors being in the working position
  • FIG. 3 shows a section along a line III-III in FIG. 1,
  • FIG. 5 shows the furniture drive according to FIG. 1 in the same representation as FIG. 4, the electric motors being in the decoupling position and
  • FIG. 6 shows the furniture drive according to FIG. 1 in the same representation as FIG. 2, the electric motors being in the decoupling position.
  • FIG. 1 shows an exemplary embodiment of a furniture drive 2 according to the invention designed as a double drive, which has a basic body designed as a housing 4, in which two adjusting devices 6, 8 designed as spindle drives are accommodated.
  • a first electric motor 12 is used as a rotary drive for an adjusting spindle 10 of the adjusting device 6 and as a rotary drive for an adjusting spindle 14
  • Adjustment device 8 a second electric motor 16 is provided. Otherwise, the adjusting devices 6, 8 are not explained in more detail here.
  • FIG. 2 shows part of the furniture drive 2 according to FIG. 1.
  • the first electric motor 12 and the second electric motor 16 are fastened to a holder 18 which is pivotably mounted on the housing 4 in a manner explained in more detail below with reference to FIG. 3.
  • the first electric motor 12 has a gearbox Assigned to order 20, via which an output shaft of the first electric motor 12, which cannot be seen in FIG.
  • a transmission arrangement 20 ' is assigned to the second electric motor 16, the transmission arrangements 20, 20' being constructed correspondingly to one another. Therefore, only the gear arrangement 20 is explained below.
  • the gear arrangement 20 On the input side, the gear arrangement 20 has a worm 24 which is formed in one piece with the output shaft of the first electric motor 12 and is rotatably mounted on the holder 18 and is in engagement with a worm wheel 26 to which a first spur gear 28 is connected in a rotationally fixed manner. In the working position of the first electric motor 12 shown in FIG.
  • the first spur gear 28 is in engagement with a second spur gear 30, which forms an output-side gear element of the gear arrangement 20 and is non-rotatably connected to the adjusting spindle 10, so that in the working position the first electric motor 12 is in rotary drive connection with the adjusting spindle 10.
  • a common bearing axis 32 is provided on the spur gear of the gear arrangement 20 ′ and is held on the holder 18.
  • Fig. 3 which shows a section along a line III-III in Fig. 1, it can be seen that the movable holder 18 has formed on its sides pins 32, 34, with which it is formed into the pins 32, 34 complementary Recesses 36, 38 engage in the housing 4, so that the bracket 18 by one in Fig. 3 is symbolized by a dashed line 40 pivot axis, which in this embodiment is perpendicular to the output shafts of the electric motors 12, 16, is pivotally mounted on the housing 4.
  • FIG. 4 shows a section 20 along a line IV-IV in FIG. 1, the first electric motor 14 being in the working position in which the first spur gear 28 is in engagement with the second spur gear 30.
  • spring means are provided according to the invention for biasing the holder 18 in the direction of the working position of the first electric motor 12, which in this exemplary embodiment are formed by a leaf spring 42 which is between the holder 18 and an inner wall of the Housing 4 is arranged (see. Fig. 2).
  • actuating means are provided for manual actuation of the bracket 18, which are formed in this embodiment by a loop-shaped tension band 44 which is held on a bracket 46 on the side of the bracket 18 facing away from the pivot axis 40. If the electric motors 12, 16 fail, a user pulls in the direction of an arrow 48 on the drawstring 44, so that the holder 18 pivots clockwise about its pivot axis 14.
  • the input-side first spur gear 28 of the gear arrangement 20 disengages from the second spur gear 30 forming the output-side gear element of the gear arrangement 20, as shown in FIG. 5.
  • the first electric motor 12 is decoupled from the second spur gear 20.
  • the second electric motor 16 is decoupled from the associated second spur gear of the gear arrangement 20 ', so that a part of a piece of furniture adjusted by means of the furniture drive 2 can be reset by hand without the reset being blocked by the electric motors 12, 16.
  • the worm 24, the worm wheel 26 and the first spur gear 28 are mounted on the holder 18, in this embodiment these gear elements remain permanently in engagement with the output shaft of the first electric motor 12 and are decoupled from the second spur gear 30 on the output side. so that a reset of a part of a piece of furniture adjusted by means of the furniture drive 2 is not prevented by a self-locking of the worm gear 24, 26.
  • the furniture drive according to the invention enables the electric motors 12, 14 to be decoupled in a simple manner from the respectively assigned output-side gear element. It is simple to set up and therefore inexpensive to manufacture.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Nursing (AREA)
  • Gear Transmission (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un entraînement électromoteur pour meuble (2) servant à déplacer des parties d'un meuble les unes par rapport aux autres et comprenant au moins un moteur électrique (12, 16) en liaison coopérante avec un système d'engrenages (20, 20') dont l'élément d'engrenage côté sortie (30) est en liaison active avec une partie à déplacer du meuble. Selon l'invention, des moyens de découplage affectés au moteur électrique (12, 16) servent à découpler le moteur électrique (12, 16) de l'élément d'engrenage côté sortie (30) du système d'engrenages (20). L'entraînement de meuble (2) selon l'invention permet ainsi de découpler de manière simple le moteur électrique (12, 16) de l'élément d'engrenage côté sortie. Il peut être produit de façon simple et donc peu coûteuse.
EP02776519A 2001-06-06 2002-06-05 Entrainement electromoteur pour meuble servant a deplacer des parties d'un meuble les unes par rapport aux autres Withdrawn EP1414325A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10127306 2001-06-06
DE2001127306 DE10127306A1 (de) 2001-06-06 2001-06-06 Elektromotorischer Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander
PCT/EP2002/006169 WO2002098262A1 (fr) 2001-06-06 2002-06-05 Entrainement electromoteur pour meuble servant a deplacer des parties d'un meuble les unes par rapport aux autres

Publications (1)

Publication Number Publication Date
EP1414325A1 true EP1414325A1 (fr) 2004-05-06

Family

ID=7687284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02776519A Withdrawn EP1414325A1 (fr) 2001-06-06 2002-06-05 Entrainement electromoteur pour meuble servant a deplacer des parties d'un meuble les unes par rapport aux autres

Country Status (3)

Country Link
EP (1) EP1414325A1 (fr)
DE (1) DE10127306A1 (fr)
WO (1) WO2002098262A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016050B4 (de) * 2004-04-01 2011-12-01 Cimosys Ag Elektromotorischer Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander
DE102015214301A1 (de) 2015-07-28 2017-02-02 Stabilus Gmbh Möbelstück und Stellanordnung, insbesondere für eine Lehnenverstellung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094024A (en) * 1976-08-30 1978-06-13 Interroyal Corporation System for controlling relative movement of portions of a bed
DE8800360U1 (de) * 1988-01-14 1988-05-26 Niko Gesellschaft für Antriebstechnik mbH, 5253 Lindlar Antrieb für Lattenroste (II)
US5568661A (en) * 1994-09-19 1996-10-29 C.E.B. Enterprises, Inc. Articulated bed with frame mounted power module
IT1255477B (it) * 1992-07-31 1995-11-06 Egidio Marcantoni Dispositivo per l'azionamento di reti per letti o divani con testata e/o pediera ad angolazione variabile
DE9210801U1 (de) * 1992-08-20 1992-10-22 Dewert Antriebs- und Systemtechnik GmbH & Co. KG, 4983 Kirchlengern Verstelleinrichtung für ein Lattenrost
DE29612493U1 (de) * 1996-07-18 1996-09-12 Dewert Antriebs- und Systemtechnik GmbH & Co KG, 32278 Kirchlengern Elektromotorischer Möbelantrieb
DE19647544C1 (de) * 1996-11-16 1998-04-23 Hanning Elektro Werke Antriebsvorrichtung für hin- und hergehende Schwenkbewegungen
DE29714746U1 (de) * 1997-08-18 1997-10-09 Dewert Antriebs- und Systemtechnik GmbH & Co KG, 32278 Kirchlengern Als Doppelantrieb ausgebildeter elektromotorischer Möbelantrieb
DE19752234C2 (de) * 1997-11-26 1999-12-09 Hanning Elektro Werke Antriebsvorrichtung für hin- und hergehende Schwenkbewegungen
IT238082Y1 (it) * 1997-12-02 2000-09-29 Compact S R L Gruppo motore doppio per la movimentazione di schienale e poggiapiediin poltrone e simili

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02098262A1 *

Also Published As

Publication number Publication date
DE10127306A1 (de) 2002-12-19
WO2002098262A1 (fr) 2002-12-12

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